Hole punching

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Hole punching may refer to:

  • Hole punch, an office tool used to create holes in sheets of paper
  • Punch (tool), a hard metal rod with a narrow tip which can be used for forming holes
  • Hole punching (networking), a technique in computer networking to establish a connection between two parties behind firewalls
  • Hole punching, deallocation of storage space in sparse files, optionally by issuing a TRIM command